1.Advances in transforming growth factor-β1 mediated non-canonical signaling pathways in renal fibrosis
Chinese Journal of Clinical Medicine 2026;33(3):516-525
Renal fibrosis represents the pivotal pathological process driving the progression of chronic kidney disease (CKD) towards end-stage renal disease. Its core manifestations include chronic inflammation, excessive deposition of extracellular matrix (ECM), and tubulointerstitial injury resulting in functional deterioration. Emerging research on the molecular mechanisms underlying renal fibrosis has established that, beyond the canonical Smad-dependent pathway, transforming growth factor-β1 (TGF-β1) also modulates fibrogenesis through non-canonical signaling pathways, notably the mitogen-activated protein kinase (MAPK) and phosphatidylinositol 3-kinase/protein kinase B (PI3K/Akt) cascades. These non-canonical pathways engage in crosstalk with the canonical Smad pathway, synergistically regulating key processes such as ECM metabolism, inflammatory responses, and epithelial-mesenchymal transition (EMT), thereby collectively orchestrating the initiation and progression of renal fibrosis. Notably, various active components derived from traditional Chinese medicine have demonstrated anti-fibrotic efficacy by modulating these pathways, highlighting their promising multi-target therapeutic potential. This review aims to systematically summarize recent advances in understanding the roles of TGF-β1-mediated MAPK and PI3K/Akt non-canonical signaling pathways in renal fibrosis and to discuss potential therapeutic strategies targeting these pathways.
2.Research progress of red light therapy for dry eye and visual fatigue
Yutong XIE ; Siyu JIA ; Jiamin GAO ; Ruofan LIU ; Meiling LI ; Jiangying LI ; Xi LUO ; Xiaonan LI ; Rong YAN ; Hongbo LI
International Eye Science 2026;26(4):636-640
Dry eye disease(DED)is a common ocular surface disorder worldwide, primarily characterized by a loss of homeostasis of the tear film, and frequently associated with meibomian gland dysfunction(MGD), decreased tear film stability, ocular discomfort, and visual impairment. In recent years, factors such as the widespread use of digital devices,the aging population, and environmental changes have contributed to a significant increase in its global prevalence, making it a major public health concern. Red light therapy(RLT), also known as low-level laser therapy(LLLT)or photobiomodulation(PBM), is a non-invasive treatment that utilizes low-energy red or near-infrared light to irradiate tissues. It exerts photobiomodulatory effects to promote cellular repair and functional recovery. This therapy has demonstrated considerable potential in treating various ocular conditions. Its broader clinical application could improve therapeutic outcomes, alleviate patient discomfort and financial burden, and reduce the consumption of healthcare resources, thereby yielding significant socio-economic benefits. This paper systematically reviews the multifaceted mechanisms and application prospects of RLT in managing DED, including its anti-inflammatory effects, improvement of meibomian gland function, promotion of conjunctival goblet cell repair, and alleviation of visual fatigue, aiming to provide a theoretical foundation and practical reference for its clinical adoption.
3.Effect of Traditional Chinese Medicine Monomers and Compounds on Regulating JAK/STAT Signaling Pathway in Rheumatoid Arthritis Treatment: A Review
Xiaonan YAN ; Jigao LI ; Ruixiang YANG ; Ruilin LIU ; Quan ZHOU ; Zhen LI ; Yan LIU
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(2):289-298
Rheumatoid arthritis (RA) is a common chronic systemic autoimmune disease with synovitis as the main manifestation, which often causes joint swelling and pain or even deformity. It is considered to be an incurable lifelong disease. Although the current Western medicine treatment can alleviate the progression of the disease, it has the clinical limitations of liver injury, cardiovascular complications, and other adverse reactions, along with easy recurrence. Traditional Chinese medicine (TCM) has a long history and has the advantages of individualized treatment and fewer adverse reactions. It can effectively relieve the symptoms of joint swelling and pain in RA patients and slow down the progression of bone destruction, which has attracted wide concern in the medical community. Janus kinase (JAK)/signal transducer and activator of transcription (STAT) signaling pathway is an important intracellular pathway involved in cell proliferation, differentiation, apoptosis, immune regulation, and other biological behaviors, and plays an important role in the pathophysiological process of RA. In recent years, many studies have confirmed that TCM monomers and compounds can inhibit inflammation and angiogenesis by regulating the JAK/STAT signaling pathway, induce apoptosis and inhibit proliferation of fibroblast-like synoviocytes (FLS), regulate immune response, and thus exert an effect in the treatment of RA. However, there is still a lack of comprehensive and systematic induction and overview. Therefore, by searching the relevant literature in China National Knowledge Infrastructure (CNKI) and PubMed databases from 2009 to 2024, this study described the mechanism of the JAK/STAT signaling pathway in the occurrence and development of RA and summarized the research progress of TCM monomers and compounds in regulating the JAK/STAT signaling pathway in RA intervention. The study aims to provide new ideas and strategies for the clinical treatment of RA with TCM and the research and development of new drugs.
4.Acupuncture Treatment for Severe Bell's Palsy and Its Impact on Serum GDNF and NGF:A Randomized Controlled Trial
Li MA ; Xiaonan LI ; Chenyang SU ; Juanjuan FENG ; Jingyi LIU ; Haoyi QIAO ; Peng BAI
Journal of Traditional Chinese Medicine 2026;67(12):1297-1304
ObjectiveTo evaluate the clinical efficacy and safety of acupuncture in treating severe Bell's palsy and to explore its potential mechanism by investigating the effect on serum levels of glial cell line-derived neurotrophic factor (GDNF) and nerve growth factor (NGF). MethodsA randomized, subject-blinded, sham-acupuncture controlled trial was conducted. A total of 130 patients with severe Bell's palsy were randomly allocated into a treatment group or a control group at a 1∶1 ratio. Both groups received conventional western medicine. In addition, the treatment group received acupuncture, while the control group received sham acupuncture, with each session lasting 30 minutes. The treatment course lasted 8 weeks for both groups, followed by a follow-up assessment at week 12. The primary outcome was the proportion of patients achieving House-Brackmann (H-B) grade Ⅱ or lower at week 8. Secondary outcomes included Sunnybrook facial grading system scores at week 0, 4, 8, and 12, the time to satisfactory recovery(the time required to achieve H-B grade≤Ⅱ), distribution of H-B grades and facial disability index (FDI) scores including the physical function subscale (FDIP) and social/well-being function subscale (FDIS) scores at week 0, 4, 8, and 12, and serum GDNF and NGF levels at week 0, 4, and 8. Adverse events and participants' self-assessments of treatment efficacy were also recorded. ResultsA total of 122 participants completed the study, including 62 in the treatment group and 60 in the control group. An intention-to-treat (ITT) analysis was performed, and missing data were handled using the last observation carried forward (LOCF) method. The proportion of patients achieving H-B grade ≤grade Ⅱ at week 8 was 78.5% (51/65) in the treatment group, significantly higher than 49.2% (32/65) in the control group (P<0.05). The Sunnybrook scores, FDIP and FDIS scores increased, while H-B grades decreased at week 4, 8, and 12 in both groups compared to week 0; moreover, improvements in all outcome measures were significantly greater in the treatment group than in the control group (P<0.05). The median time to satisfactory recovery was 6 weeks (95%CI: 5.697-6.303) in the treatment group, significantly shorter than 12 weeks (95%CI: 8.314-15.686) in the control group (P<0.05). Serum levels of GDNF and NGF were significantly higher in the treatment group at weeks 4 and 8 (P<0.05). No serious acupuncture-related adverse events occurred in either group. Adverse events were reported in 5 patients (7.69%) in the treatment group and 4 patients (6.15%) in the control group, with no statistically significant difference between groups (P>0.05). Patients' self-assessment of treatment efficacy after 8 weeks treatment was significantly better in the treatment group (P<0.05). ConclusionAcupuncture can effectively improve facial nerve function and shorten recovery time in patients with severe Bell's palsy, with a favorable safety profile. The therapeutic mechanism may be associated with the upregulation of serum GDNF and NGF levels.
5.Construction of a system for isolation and purification of NK cells from whole blood donations
Tengyu CAO ; Huayu LIN ; Xuanzhi ZHANG ; Cuimi DUAN ; Yi LIU ; Xiaonan XUE ; Liping SUN ; Yang YU
Chinese Journal of Blood Transfusion 2025;38(2):181-188
[Objective] To explore the feasibility of using whole blood as a source of NK cells for allogeneic CAR NK cell therapy and activated NK cell reinfusion therapy, and initially construct a technical system for the separation and purification of NK cells from whole blood. [Methods] All peripheral blood mononuclear cells (PBMCs) were enriched from 400 mL of whole blood by manual separation and machine separation, respectively. The erythrocyte loss rate, PBMCs number, NK cell purity of the two methods were compared. NK cells were sorted from PBMCs by three separation and enrichment methods as immunomagnetic bead negative selection method, platelet lysate culture expansion and PERCOLL density gradient separation method, and the purity and yield of NK cells, the activity of NK cells and the tumor-killing ability of the three separation and enrichment methods were compared. [Results] The proportion of NK cells in the lymphocyte population was higher in the manual separation method than in the machine separation method[(13.16±5.16)% vs (8.56±3.92)%, P<0.05]; the number PBMCs was lower in the manual separation method than in the machine separation method[(4.09±1.80)×108vs (6.49±2.16)×108, P<0.05], and there was no difference in the red blood cell loss between the two methods (P>0.05). The purity of NK cells isolated and enriched from PBMCs by manual separation method using immunomagnetic was (96.77±2.31)%; the yield was (56.27±10.47)%; the inhibition of tumor proliferation was (38.67±14.05)%; and the tumor killing rate was (19.90±8.05)%. The purity of NK cells isolated and enriched from PBMCs by manual separation method using platelet lysis culture expansion method was the highest at day 7, which was (54.84±15.80)%; the cell expansion multiple could reach 16.92±6.28 at day 7; the in vitro tumor killing rate of NK cells was (15.83±5.5)%; the tumor inhibition rate was (44.33±13.5)%; and there was no difference in the toxicity and activity of NK cells between the two methods (P>0.05). The purity of NK cells isolated and enriched by PERCOLL density gradient separation method was (15.83±5.82)%, and the yield was (14±6.25)%, which was significantly lower than the other two methods. [Conclusion] PBMCs isolated from whole blood by manual separation and NK cells enriched by negative selection with immunomagnetic beads have the potential to provide NK cell materials for CAR-NK cell therapy, and NK cells enriched by platelet lysate-conditioned medium have the potential to provide NK cells for large-scale NK cell activation reinfusion therapy.
6.Ultrastructural pathological observation of vaginal inflammatory mucosal injury induced by Candida albicans infection and the restorative effect of Lactobacillus crispatus
Ting LI ; Zhan ZHANG ; Huihui BAI ; Linyuan FAN ; Xiaonan ZONG ; Zhaohui LIU
Chinese Journal of Obstetrics and Gynecology 2025;60(11):890-896
Objective:To establish a rat model of vulvovaginal candidiasis (VVC) and to directly observe the histopathological and ultrastructural characteristics of vaginal mucosal barrier after Candida albicans infection and treatment with Lactobacillus crispatus.Methods:Female unmated SD rats were used to establish the VVC model and divided into three groups (normal group, VVC group, and Lactobacillus group; n=6 per group). Lactobacillus group received intravaginal administration of Lactobacillus crispatus suspension, while rats in VVC group and normal group were infused with phosphate buffered solution instead. Vaginal tissues were collected on day 4 post-treatment for HE staining and transmission electron microscopy (to observe ultrastructural pathological changes). Results:The results of HE staining revealed the disruption and desquamation of vaginal epithelium, necrotic epithelial tissues, neutrophil infiltration in Candida albicans-infected rats. Lactobacillus crispatus intervention restored the damaged vaginal mucosal structure (mucosal layers and thickness) to normal levels, mucosal layers of Lactobacillus group and normal group were 9.50±1.38 vs 10.67±1.03 ( P=0.226), mucosal thickness of Lactobacillus group and normal group were (116.50±12.14) vs (130.33±13.91) μm ( P=0.211). The results of transmission electron microscopy revealed intercellular desmosome rupture, loss of microvilli and glycocalyx on superficial cells, and mitochondrial swelling in Candida albicans-infected rats. Lactobacillus crispatus intervention restored the damaged vaginal mucosal ultrastructures (mitochondria and intercellular connections, etc.) to normal levels. Conclusions:Fungal infection severely disrupte the vaginal mucosal barrier in rats. Lactobacillus crispatus could restore the vaginal mucosal barrier and epithelial ultrastructures.
7.Applications of radiomics in personalized radiotherapy
Gaojie LIU ; Xiaonan SUN ; Yongwu LI ; Qiong ZHOU
Chinese Journal of Radiological Medicine and Protection 2025;45(6):585-590
Radiomics represents a non-invasive, quantitative image analysis method, aimed at correlating high-throughput quantitative radiomics features with clinical and biological endpoints. This method enables comprehensive, multiple, and non-invasive tumor assessment based on different types of images in various stages of radiotherapy. Advancements have been made in the applications of radiomics combined with machine learning-based statistical method in multiple fields including individualized target delineation, the prediction of local recurrence and radiation-induced injuries, the assessment of distant metastasis risks, the prediction of tumor motion, adaptive radiotherapy (ART), and multi-omics analysis. These advancements provide more possibilities for personalized radiotherapy. This study presents a brief introduction to the applications of radiomics in personalized radiotherapy.
8.Survey on ERAS implementation situation in Chongqing
Yiwei SHEN ; Su MIN ; Feng LYU ; Xiaonan LIU ; Juying JIN ; Li REN
Chongqing Medicine 2025;54(11):2649-2655
Objective To investigate the executive condition of Enhanced Recovery After Surgery(ERAS)measures among the hospitalized surgical patients in secondary and tertiary medical institutions of Chongqing City.Methods Using a multicenter cross-sectional survey approach,patients undergoing elective surgeries admitted and treated in 40 member units under the Chongqing Anesthesiology and Perioperative Medicine Specialized Alliance from July 11 to 30,2024 were selected as the survey subjects.Adherence to and completion of ERAS measures were calculated.Factors influencing measures with low completion rates were analyzed.Results A total of 2 100 questionnaires were issued,1 708 effective questionnaires were recovered with an effective recovery rate of 81.33%.Among them,there were 1 017 questionnaires in the tertiary medi-cal institutions and 691 questionnaires in the secondary medical institutions.The age of 1 708 patients ranged from 19-78 years old with a median age of 52 years old.Females were dominant.The proportion of patients from gastrointestinal surgery and those with secondary school education or above was high.Hypertension and diabetes were the main complication types.The surgical grade was concentrated at grades Ⅲ and Ⅳ.The ASA grading was concentrated at the grade Ⅰ/Ⅱ.The NYHA heart function grade was mainly the grade Ⅰ/Ⅱ.The ERAS measures compliance rate ranged from 36.36%to 95.45%,averaged 73.47%.The compliance rate of ERAS measures in the tertiary hospitals was higher than that in the secondary hospitals(75.82%vs.70.01%),and the difference was statistically significant(P<0.05).The average completion rate of ERAS measures was 74.08%.The top three in the completion rate were preoperative education(95.78%),preven-tive antibiotics and skin preparation(92.62%),and preoperative interview and evaluation(88.58%).The completion rates of Prehabilitation(55.27%)and preoperative fasting(57.67%)urgently needed to be in-creased.The completion rate of other measures was lower than 60%.Conclusion The compliance rate of ERAS measures needs to be increased,moreover there are significant differences among various hospitals.Fu-ture practices should focus on two measures:preoperative pre-rehabilitation exercises and preoperative oral intake of carbohydrates.
9.Visualizing the evidence of robotic gastrointestinal surgery based on guideline recommendations: an evidence mapping study of gastric and colorectal cancer
Quan WANG ; Mingming NIU ; Ruishu LI ; Shiqi WANG ; Galyna SHABAT ; Alberto AIOLFI ; Jinhui TIAN ; Kewei JIANG ; Xiaonan LIU ; Luigi BONAVINA
Chinese Journal of Gastrointestinal Surgery 2025;28(8):927-936
Robotic surgery, as an increasingly widespread application in the treatment of gastric and colorectal cancer, still faces obvious discrepancies in recommendations, indications, and evidence strength across existing guidelines. This study systematically analyzed 31 relevant guidelines and consensus statements (retrieved from Chinese and English databases from January 2010 to May 2025) from two dimensions: feasibility (effectiveness, safety, etc.) and training quality control.The results showed that colorectal cancer guidelines had a higher proportion (4 guidelines) of "clear recommendations" for robotic surgery, while gastric cancer guidelines predominantly presented "conditional recommendations" or no recommendations. In the training and quality control dimension, although structured suggestions received positive recommendations, more than half were based on low or very low-quality evidence. Evidence mapping indicated insufficient matching between "case-specific recommendations" and evidence grades in the feasibility dimension, while training processes emphasized the importance of standardized systems and team collaboration.The study highlights the existing heterogeneity in evidence-based guidelines for robotic gastrointestinal surgery, with colorectal cancer demonstrating a more mature evidence base and gastric cancer showing notable evidence gaps. It is recommended that future guideline development should strengthen the consistency between recommendation grades and evidence levels, promote high-quality research in upper gastrointestinal surgery, and improve surgeon training and certification systems to facilitate standardized clinical translation of robotic gastrointestinal surgery.
10.The effects and mechanism of total flavonoids of Sarcandra glabra in modulating bone marrow mesenchy-mal stem cells and their exosomes to promote megakaryocyte differentiation
Huizhen LIU ; Xiaonan LU ; Ge LIU ; Guanqing CAI ; Pingan LI ; Yingjian ZENG ; Guangbin SHANG
The Journal of Practical Medicine 2025;41(11):1618-1626
Objective To investigate the effects and underlying mechanisms of total flavonoids of sarcandra glabra(TFFSG)on bone marrow mesenchymal stem cells(BMSCs)and their derived exosomes in immune thrombo-cytopenia(ITP),with a focus on promoting megakaryocyte differentiation and maturation.Methods BMSCs induced by rabbit anti-rat platelet serum(APS)were divided into five groups:a blank control group,an ITP-BMSCs model group,and three TFFSG intervention groups with low(1.95 μg/mL),medium(3.90 μg/mL),and high doses(7.80 μg/mL).The apoptosis rates and the expression levels of apoptosis-related proteins-B-cell lymphoma 2(Bcl-2),Bcl-2-associated X protein(BAX),and Cysteinyl aspartate-specific proteinase-3(Caspase-3)-were assessed.Exosomes were isolated from the blank control group(NC-BMSCs-Exos),the ITP-BMSCs model group(ITP-BMSCs-Exos),and the medium-dose TFFSG group(TFFSG-BMSCs-Exos).Each group's exosomes(5 μg/mL)were co-cultured with megakaryocytic lineage Dami cells for 96 hours.Flow cytometry was employed to evaluate the expression of megakaryocytic differentiation markers(CD41a,CD42b,CD61)and the proportion of polyploid cells(≥4 N)in each group.Western Blot analysis was conducted to examine the expression of p-MEK1/2,MEK1/2,p-ERK1/2,and ERK1/2 across all groups.Results Compared with the ITP-BMSCs model group,the apoptosis rates in all TFFSG intervention groups were significantly reduced(P<0.01).In the medium-and high-dose TFFSG groups,BAX and Caspase-3 expression levels were markedly downregulated,whereas Bcl-2 expression was upregulated(P<0.05,P<0.01).Compared with the ITP-BMSCs-Exos group,the TFFSG-BMSCs-Exos group demonstrated increased expression of CD41a+,CD42b+,and CD61+,a higher proportion of polyploid cells(≥4 N)(P<0.05),as well as elevated ratios of p-MEK1/2 to MEK1/2 and p-ERK1/2 to ERK1/2(P<0.05).Conclusion TFFSG inhibits apopto-sis of ITP-state BMSCs in vitro and promotes megakaryocyte differentiation and polyploidization maturation through BMSC-derived exosomes by activating the MEK1/2-ERK1/2 signaling pathway.

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